Update Corstone board layer for GCC

Author: furbanc

Alif/AppKit/Board/Corstone-300/Board-U55.clayer.yml

@@ -55,3 +55,7 @@ layer:
 
   linker:
     - script: ./mps3-sse-300.sct
+      for-compiler: AC6
+    - script: ./RTE/Device/SSE-300-MPS3/gcc_linker_script.ld.src
+      regions: ./RTE/Device/SSE-300-MPS3/regions_V2M-MPS3-SSE-300-FVP.h
+      for-compiler: GCC

Alif/AppKit/Board/Corstone-300/Board-U65.clayer.yml

@@ -55,3 +55,7 @@ layer:
 
   linker:
     - script: ./mps3-sse-300.sct
+      for-compiler: AC6
+    - script: ./RTE/Device/SSE-300-MPS3/gcc_linker_script.ld.src
+      regions: ./RTE/Device/SSE-300-MPS3/regions_V2M-MPS3-SSE-300-FVP.h
+      for-compiler: GCC

Alif/AppKit/Board/Corstone-300/Board.clayer.yml

@@ -52,3 +52,7 @@ layer:
 
   linker:
     - script: ./mps3-sse-300.sct
+      for-compiler: AC6
+    - script: ./RTE/Device/SSE-300-MPS3/gcc_linker_script.ld.src
+      regions: ./RTE/Device/SSE-300-MPS3/regions_V2M-MPS3-SSE-300-FVP.h
+      for-compiler: GCC

Alif/AppKit/Board/Corstone-300/RTE/Device/SSE-300-MPS3/gcc_linker_script.ld.src

@@ -0,0 +1,308 @@
+/*
+ * Copyright (c) 2023 Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the License); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an AS IS BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/* ----------------------------------------------------------------------------
+  Stack seal size definition
+ *----------------------------------------------------------------------------*/
+#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U)
+#define __STACKSEAL_SIZE   ( 8 )
+#else
+#define __STACKSEAL_SIZE   ( 0 )
+#endif
+
+/* ----------------------------------------------------------------------------
+  Memory definition
+ *----------------------------------------------------------------------------*/
+MEMORY
+{
+  ROM0  (rx)  : ORIGIN = __ROM0_BASE, LENGTH = __ROM0_SIZE
+#if __ROM1_SIZE > 0
+  ROM1  (rx)  : ORIGIN = __ROM1_BASE, LENGTH = __ROM1_SIZE
+#endif
+#if __ROM2_SIZE > 0
+  ROM2  (rx)  : ORIGIN = __ROM2_BASE, LENGTH = __ROM2_SIZE
+#endif
+#if __ROM3_SIZE > 0
+  ROM3  (rx)  : ORIGIN = __ROM3_BASE, LENGTH = __ROM3_SIZE
+#endif
+
+  RAM0  (rwx) : ORIGIN = __RAM0_BASE, LENGTH = __RAM0_SIZE
+#if __RAM1_SIZE > 0
+  RAM1  (rwx) : ORIGIN = __RAM1_BASE, LENGTH = __RAM1_SIZE
+#endif
+#if __RAM2_SIZE > 0
+  RAM2  (rwx) : ORIGIN = __RAM2_BASE, LENGTH = __RAM2_SIZE
+#endif
+#if __RAM3_SIZE > 0
+  RAM3  (rwx) : ORIGIN = __RAM3_BASE, LENGTH = __RAM3_SIZE
+#endif
+}
+
+/* Linker script to place sections and symbol values. Should be used together
+ * with other linker script that defines memory regions FLASH and RAM.
+ * It references following symbols, which must be defined in code:
+ *   Reset_Handler : Entry of reset handler
+ *
+ * It defines following symbols, which code can use without definition:
+ *   __exidx_start
+ *   __exidx_end
+ *   __copy_table_start__
+ *   __copy_table_end__
+ *   __zero_table_start__
+ *   __zero_table_end__
+ *   __etext          (deprecated)
+ *   __data_start__
+ *   __preinit_array_start
+ *   __preinit_array_end
+ *   __init_array_start
+ *   __init_array_end
+ *   __fini_array_start
+ *   __fini_array_end
+ *   __data_end__
+ *   __bss_start__
+ *   __bss_end__
+ *   __noinit_start
+ *   __noinit_end
+ *   __end__
+ *   end
+ *   __HeapLimit
+ *   __StackLimit
+ *   __StackTop
+ *   __stack
+ */
+ENTRY(Reset_Handler)
+
+SECTIONS
+{
+  .text :
+  {
+    KEEP(*(.vectors))
+    *(.text*)
+
+    KEEP(*(.init))
+    KEEP(*(.fini))
+
+    /* .ctors */
+    *crtbegin.o(.ctors)
+    *crtbegin?.o(.ctors)
+    *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
+    *(SORT(.ctors.*))
+    *(.ctors)
+
+    /* .dtors */
+    *crtbegin.o(.dtors)
+    *crtbegin?.o(.dtors)
+    *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
+    *(SORT(.dtors.*))
+    *(.dtors)
+
+    *(.rodata*)
+
+    KEEP(*(.eh_frame*))
+  } > ROM0
+
+#if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U)
+  .gnu.sgstubs :
+  {
+    . = ALIGN(32);
+  } > ROM0
+#endif
+
+  .ARM.extab :
+  {
+    *(.ARM.extab* .gnu.linkonce.armextab.*)
+  } > ROM0
+
+  __exidx_start = .;
+  .ARM.exidx :
+  {
+    *(.ARM.exidx* .gnu.linkonce.armexidx.*)
+  } > ROM0
+  __exidx_end = .;
+
+  .copy.table :
+  {
+    . = ALIGN(4);
+    __copy_table_start__ = .;
+
+    LONG (LOADADDR(.data))
+    LONG (ADDR(.data))
+    LONG (SIZEOF(.data) / 4)
+
+    /* Add each additional data section here */
+/*
+    LONG (LOADADDR(.data2))
+    LONG (ADDR(.data2))
+    LONG (SIZEOF(.data2) / 4)
+*/
+    __copy_table_end__ = .;
+  } > ROM0
+
+  .zero.table :
+  {
+    . = ALIGN(4);
+    __zero_table_start__ = .;
+
+/*  .bss initialization to zero is already done during C Run-Time Startup.
+    LONG (ADDR(.bss))
+    LONG (SIZEOF(.bss) / 4)
+*/
+
+    /* Add each additional bss section here */
+/*
+    LONG (ADDR(.bss2))
+    LONG (SIZEOF(.bss2) / 4)
+*/
+    __zero_table_end__ = .;
+  } > ROM0
+
+  /*
+   * This __etext variable is kept for backward compatibility with older,
+   * ASM based startup files.
+   */
+  PROVIDE(__etext = LOADADDR(.data));
+
+  .data : ALIGN(4)
+  {
+    __data_start__ = .;
+    *(vtable)
+    *(.data)
+    *(.data.*)
+
+    . = ALIGN(4);
+    /* preinit data */
+    PROVIDE_HIDDEN (__preinit_array_start = .);
+    KEEP(*(.preinit_array))
+    PROVIDE_HIDDEN (__preinit_array_end = .);
+
+    . = ALIGN(4);
+    /* init data */
+    PROVIDE_HIDDEN (__init_array_start = .);
+    KEEP(*(SORT(.init_array.*)))
+    KEEP(*(.init_array))
+    PROVIDE_HIDDEN (__init_array_end = .);
+
+    . = ALIGN(4);
+    /* finit data */
+    PROVIDE_HIDDEN (__fini_array_start = .);
+    KEEP(*(SORT(.fini_array.*)))
+    KEEP(*(.fini_array))
+    PROVIDE_HIDDEN (__fini_array_end = .);
+
+    KEEP(*(.jcr*))
+    . = ALIGN(4);
+    /* All data end */
+    __data_end__ = .;
+
+  } > RAM0 AT > ROM0
+
+  /*
+   * Secondary data section, optional
+   *
+   * Remember to add each additional data section
+   * to the .copy.table above to assure proper
+   * initialization during startup.
+   */
+/*
+  .data2 : ALIGN(4)
+  {
+    . = ALIGN(4);
+    __data2_start__ = .;
+    *(.data2)
+    *(.data2.*)
+    . = ALIGN(4);
+    __data2_end__ = .;
+
+  } > RAM1 AT > ROM0 
+*/
+
+  .bss :
+  {
+    . = ALIGN(4);
+    __bss_start__ = .;
+    *(.bss)
+    *(.bss.*)
+    *(COMMON)
+    . = ALIGN(4);
+    __bss_end__ = .;
+  } > RAM0 AT > RAM0
+
+  /*
+   * Secondary bss section, optional
+   *
+   * Remember to add each additional bss section
+   * to the .zero.table above to assure proper
+   * initialization during startup.
+   */
+/*
+  .bss2 :
+  {
+    . = ALIGN(4);
+    __bss2_start__ = .;
+    *(.bss2)
+    *(.bss2.*)
+    . = ALIGN(4);
+    __bss2_end__ = .;
+  } > RAM1 AT > RAM1
+*/
+
+  /* This section contains data that is not initialized during load,
+     or during the application's initialization sequence. */
+  .noinit (NOLOAD) :
+  {
+    . = ALIGN(4);
+    __noinit_start = .;
+    *(.noinit)
+    *(.noinit.*)
+    . = ALIGN(4);
+    __noinit_end = .;
+  } > RAM0
+
+  .heap (NOLOAD) :
+  {
+    . = ALIGN(8);
+    __end__ = .;
+    PROVIDE(end = .);
+    . = . + __HEAP_SIZE;
+    . = ALIGN(8);
+    __HeapLimit = .;
+  } > RAM0
+
+  .stack (ORIGIN(RAM0) + LENGTH(RAM0) - __STACK_SIZE - __STACKSEAL_SIZE) (NOLOAD) :
+  {
+    . = ALIGN(8);
+    __StackLimit = .;
+    . = . + __STACK_SIZE;
+    . = ALIGN(8);
+    __StackTop = .;
+  } > RAM0
+  PROVIDE(__stack = __StackTop);
+
+#if __STACKSEAL_SIZE > 0
+  .stackseal (ORIGIN(RAM0) + LENGTH(RAM0) - __STACKSEAL_SIZE) (NOLOAD) :
+  {
+    . = ALIGN(8);
+    __StackSeal = .;
+    . = . + 8;
+    . = ALIGN(8);
+  } > RAM0
+#endif
+
+  /* Check if data + heap + stack exceeds RAM limit */
+  ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
+}